California's 48th Congressional District (CA-48)
Last updated · 6 sources
Darrell Issa, a Republican, has represented the district since 2023.
The district includes parts of San Diego and Riverside counties.
According to the Census Bureau's 2020–2024 American Community Survey 5-year estimates, the district has a population of 760,621, a median household income of $113,202, and a median age of 39.5. Of residents 25 and older, 34.7% hold a bachelor's degree or higher.
Representative
U.S. Representative for California's 48th District · Republican
2026 redistricting
California uses a new congressional map in 2026: AB 604 (Proposition 50), approved by voters Nov 4, 2025.
The 2026 election for CA-48 uses the new map's CA-48; the map on this page shows the district as currently drawn (119th Congress).
2026 election
Issa is not seeking re-election in 2026 (announced Mar 6, 2026).
12 candidates have reported raising money for the 2026 CA-48 race to the FEC.
Election Day: Tuesday, November 3, 2026
| Candidate | Party | Raised | Cash on hand | Through |
|---|---|---|---|---|
| Brandon Riker | Democratic | $2,265,170 | $21,225 | Jun 30 |
| Jim Desmond | Republican | $2,258,836 | $1,230,031 | Jun 30 |
| Marni Von Wilpert | Democratic | $2,174,872 | $825,012 | Jun 30 |
| Abel Chavez | Democratic | $472,665 | $10,766 | Jun 30 |
| Anuj Dixit | Democratic | $465,937 | $168,415 | Jun 30 |
| Ferguson Porter | Democratic | $62,492 | $21,538 | Sep 30 |
| Marc Iannarino | Democratic | $45,314 | $0 | May 21 |
| Corinna Contreras | Democratic | $35,600 | $0 | Jun 30 |
| Curtis Morrison | Democratic | $35,553 | $0 | Feb 23 |
| Suzanne Marie Till | Democratic | $6,854 | $0 | Dec 4 |
| Ammar Campa-Najjar | Democratic | $4,772 | $0 | Feb 18 |
| Whitney Shanahan | Democratic | $4,174 | $1,290 | Jun 30 |
Includes primary candidates; FEC filings do not record primary results. FEC race page
District profile
- Population
- 760,621
- Median household income
- $113,202
- Median age
- 39.5
- Bachelor's degree or higher
- 34.7%
Census Bureau, 2020–2024 American Community Survey 5-year estimates
California senators
Adam SchiffU.S. Senator for California · Democrat
Alex PadillaU.S. Senator for California · Democrat
Neighboring districts
Sources
- District boundaries (Census Bureau cartographic boundary file, 119th Congress) · retrieved Oct 2, 2026
- Counties by district (Census Bureau relationship file) · retrieved Oct 2, 2026
- District profile (Census Bureau, 2020–2024 American Community Survey 5-year estimates) · retrieved Oct 2, 2026
- congress-legislators (member data, CC0) · retrieved Oct 2, 2026
- 2026 congressional map
- Candidates and totals (Federal Election Commission) · retrieved Oct 2, 2026